The factory I am going to is the place my mother used to work many years ago.A. where w

问题补充：

The factory I am going to is the place my mother used to work many years ago.

A. where, where

B. where, which

C. which, where

D. that, which

答案：

A. where, where

B. where, which

(答案→)C. which, where

D. that, which

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